Change is afoot...
Within a few moments of President Obama being sworn in, a new whitehouse.gov was revealed. The new site looks great, and promises greater transparency about the actions of our President and government.
Along those lines, check out its robots.txt file, in entirety:
Compare this to the robot.txt from Bush's era, and I think you've got a lovely little microcosm; one that points to a hopeful, and open future.